It came out of my micro-sct. I think it's this:What motor/esc is that?
http://www.losi.com/Products/Features.aspx?ProdID=LOSB9593
This is what it came from:
http://www.losi.com/Products/Default.aspx?ProdID=LOSB0242T2
I replaced the 4 wire servo a long time ago with a decent 3-wire servo when I installed the 2.4gz board instead of the original AM board. It's a combo receiver/esc board that can run a 4 wire servo or 3 wire servo and brushed or sensorless brushless motor. Pretty much a one for all that covers any base you want.
I did it to get rid of the glitchy am system. Then I did the servo because the stock 4wire sucked. Then I got the atomick big block brushed motor. Then it sat for quite a while because I kept chewing up trans gears. Then I got the alloy trans case with bearings on the input, drove it a while and the BB motor got some age and I put a losi DT brushed motor in, then started melting the inside of the diff gears. Then it sat again until I ran across a micro-sct diff conversion. Required a bit of finagling and shimming, but held up really well so far. I now run it once in a while around the house whenever the mood hits me. Usually when I'm on vacation and my wife isn't, then I can setup ramps and stuff in the living room/kitchen and run it around for an hour while irritating the cats and not irritating my wife.
The micro-sct I left stock (other than putting a truck body vs the sct body) because it was too big to run around the house and I never drive it. In my mind, it was a 4wd DT sized truck (elongated micro-t), but it's not, it's larger. Too big for my house and too small to be much fun outside.